Image caption on page 77 of the book US National Library of Medicine: "This plaque, located next to the library's 'Tree of Hippocrates,' explained the historical significance of the tree. Courtesy of Stephen J. Greenberg."

Copyright:

The National Library of Medicine believes this item to be in the public domain. (More information)

Image caption on page 77 of the book US National Library of Medicine: "This plaque, located next to the library's 'Tree of Hippocrates,' explained the historical significance of the tree. Courtesy of Stephen J. Greenberg."

Copyright:

The National Library of Medicine believes this item to be in the public domain. (More information)